Just hit 500 miles on my bike! But I'm starting to think it's time to get a new motor. And I really want it to be brushless... I've been looking around for them but haven't found much. I want maximum amout of power but I also don't want to sacrifice the speed I already have. I want a ton of torque. Right now, if I gun the throttle I get 6mph, 10 mph, 12, 14 ,16... (speedometer updates every 1 second) ect... my goal is to see double that or more. My main problem is I don't want to run 48 volts... I have never seen a 36 volt brushless motor before... and if I buy a 48 volt brushless motor and controller I will have two problems... first, I believe the motor will loose watts at lower voltage right? And second most of the controllers I see have low voltage cutoff at 41 volts... is there anyway i can disable that? And yes I am still on a budget... I would like to spend less than $150 and no more than $200. Would 1800 watt motor be powerful enough (at least to easily pop a wheelie)? By the way here are the pics I forgot to send of the fans... the last photo is when I gunned the throttle... it took 7 seconds just to get to 20 mph... is that short or is that long? I dunno lol.

From what I'm seeing lead acid batterys can send our a ton of watts in short bursts... to be honest that's all I need... if I gun the throttle at 0, it should pull 1800 watts until I get up to speed right... but is it bad for the batterys?

That is disappointing... and from what I am seeing is that hoverboard batterys only come in 4 AH... that's definitely not enough capacity compared to the 15 ah per battery I have right now... plus I will have to worry about overcharging the battery.

you have to have the through axle type so a pit bike wheel will work...

The wheel is actually a custom-built 16 inch double-walled BMX rim with a through-axle mountain bike hub. You could use any wheel and fork setup as long as it is a 1 1/8" straight tube on the fork. You just want the fork, handlebars, wheel, and brake to all be compatible with each other. To do that, you are going to end up replacing all of those and ditching what is on your MX650. I went with the smaller custom wheel to keep the overall height lower. It's actually the stock tire.

[QUOTE=MrKitty;903319]tip any time you buy mt bike forks get a few seal kits as well they go obsolete fast then you cant get parts once this hapends your exspeisve forks become trash becaus of a few 50cent o rings[QUOTE]

Good point, thanks.

[QUOTE=MrKitty;903319]its a very exspeisve mod and i advise anyone thinking about it to price out the parts befor thinking to mutch about it.[QUOTE]

Yes very expensive, if I were looking at cost alone I was probably in it ~$2000 with the original bike, lithium battery, 1800watt kit, suspension upgrades, other misc. Just the fork upgrade you are probably $700-800 to do it right, but you could do it for a bit less. A Sur-Ron I think you can get for a little over $3000, and that is much more of a machine than this. But, building these is what I do for fun. We have a dirt track close to our house and it is a blast. These will go about 2 hours on a charge ripping around a dirt track. No noise to annoy neighbors. With this suspension upgrade I can do a little more jumping.

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